This sounds like a job for WordPress Cron. Note that WordPress Cron works slightly different to the UNIX version in that it runs only if there is a site visit. So if your website has low traffic then use a service such as Pingdom to ensure your site is hit regularly.
Looking through your list of active plugins, it’s likely one or more are using admin-ajax.php. You should try identify which of them are a) using the resource and b) how often. The Heartbeat API is known to put pressure on admin-ajax.php so perhaps check if any are using that as well.
There’s a function that will help you do that. It’s called groups_is_user_creator(). The first step is to create a groups loop. The code on this page will do that for you. Then immediately after <?php while ( bp_groups() ) : bp_the_group(); ?> you could add something like this:
if ( ! groups_is_user_creator( bp_loggedin_user_id(), bp_get_group_id() ) )
continue;
Some considerations:
I’ve used bp_loggedin_user_id(), but feel free to use something else like the displayed member’s ID.
The function uses BP_Groups_Member::check_is_creator() which performs a database query for each item in the loop. To improve performance you might want to write your own SQL targeting groups only you’ve created and then loop through the result set. There may already be a function that does that for you. I’m not aware of one but someone else on here might be
admin-ajax.php is known for being clunky, but not 10-second-wait clunky. Which plugins are you running? Which theme? And also do you have any custom code in place that calls admin-ajax.php?
